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2220002101987 = 13567631636249
BaseRepresentation
bin100000010011100010011…
…011111100101011100011
321212020012202121121002121
4200103202123330223203
5242333031014230422
64415504353325111
7316250502342145
oct40234233745343
97766182547077
102220002101987
1178655234728a
122ba302266797
13131464815b47
147963d242c95
153cb324858c7
hex204e26fcae3

2220002101987 has 4 divisors (see below), whose sum is σ = 2220005095000. Its totient is φ = 2219999108976.

The previous prime is 2220002101981. The next prime is 2220002102047. The reversal of 2220002101987 is 7891012000222.

2220002101987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2220002101987 - 239 = 1670246288099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220002101981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538639 + ... + 2174887.

It is an arithmetic number, because the mean of its divisors is an integer number (555001273750).

Almost surely, 22220002101987 is an apocalyptic number.

2220002101987 is a deficient number, since it is larger than the sum of its proper divisors (2993013).

2220002101987 is a wasteful number, since it uses less digits than its factorization.

2220002101987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993012.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 2220002101987 in words is "two trillion, two hundred twenty billion, two million, one hundred one thousand, nine hundred eighty-seven".

Divisors: 1 1356763 1636249 2220002101987